GB/T 20878-2007 Translated English of Chinese Standard. (GBT 20878-2007, GB/T20878-2007, GBT20878-2007): Stainless and heat-resisting steels - Designation and chemical composition [Buy--download True-PDF in 3-second: https://play.google.com/books > Sign in > This BOOK > "3-dots" > Export > Save as "*.pdf"]https://www.chinesestandard.net, 2015. 11. 28. - 43페이지 This Standard specifies the designation and its chemical constitution of stainless steel and heat resisting steel. Physical parameter of some designations, overseas standards designation or approximate designation parallel table, stainless steel and heat resisting steel designation criterion of acceptability are specified in the Informative Annex. |
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1Cr12Ni2WMoVNb Austenitic grade stainless Austenitic-ferritic aviation GJB carbon content chemical composition Chemical Chemical constitution limit Chemical constitution mass Chromium Cold rolled cold-working composition Chemical constitution composition indicated constitution mass fraction countries parallel table Cr Mo designation Old designation Ferritic grade stainless grade stainless steel greater than 1.00 hardening grade stainless heat resisting steel Informative Annex lower limits scope magnetic property Martensitie grade stainless maximum value minimal value molybdenum numerical New designation Precipitation hardening grade product standard range higher content recommended silicon content recommended upper resisting steel designation scope of composition scope or minimal Seamless steel tubes Serial number Unified Serial Unified numbe special technical requirement Specification for stainless stainless steel plate Stainless steel seamless stainless steel Stainless Stainless steel wire steel and heat steel bars GB/T steel seamless tubes steel Stainless steel Table 3 Ferritic Table 5 Precipitation tantalum Unified numbe numeric Unless composition range upper and lower